https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109951
--- Comment #2 from Iain Sandoe <iains at gcc dot gnu.org> --- OK so the best bracket I've been able to get without doing surgery to make a branch with a back port for the bootstrap break; r14-803-g20ca33db817cec OK r14-857-g30adfb85ff994c NOT OK, My analysis could well also be flawed: * perhaps the bug is actually that GXX_UNDER_TEST should not contain multi-lib-specific paths. * also maybe the include paths are not problematical - the issue might be limited to the -L ones.